Thread guide for shuttles



Dec. 30, 1930. w P, CRAIG 1,786,602

THREAD GUIDE FOR SHUTTLES Filed May 15, 1930 amen tor lk'lam f? Crag/6:9,

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Patented Dec. 36, 1.930

Parana THREAD GUIDE Application filed May 15,

This invention relates to shuttles for looms and more particularly to an improved thread guide for such shuttles.

The objects of the invention are to provide a thread guide for preventing contact of the thread with the wooden sides of the shuttle, and to devise improved means for detachably holding such thread guide in position.

In order that the invention may be readily understood, reference had to the accompanying drawing forming part of this specification and in which:

Fig. l is a plan view of a shuttle showing my improved thread guide mounted therein;

and

Fig. 2 is a transverse section on an enlarged scale, substantially on the line 22 of Fig. 1.

Referring to the drawing in detail, 1 designates a shuttle which may be of any suitable or desired type. The shuttle illustrated is preferably formed of wood and is provided with a recess or chamber 2 for receiving the bobbin. This chamber is usually lined with felt or the like, and a piece of felt 3 is mounted at the forward end of the bobbin chamber and is provided with slot at through which the thread passes.

My improved thread guide is positioned at a point between the bobbin and the end felt In accordance with the present invention, I form a thread guide of a strip 5 of lexible material, such as felt, flannel or the like. This r is preferably folded or doubled over on itself 0 so as to provide upper and lower portions between which the thread passes.

In order to detachably hold this folded strip in position in the bobbin chamber, 1 40 have devised an improved spring clip designated in its entirety by the reference numeral 8. This clip, which may conveniently be formed of resilient wire, is of substantially U-shape, but the central portion 8 does not lie in the same plane as the arms but is bent downwardly as shown in Fig. 2. The free ends of the arms of the clip are bent outwa-rdly, as indicated at 8, these outwardly bent portions fitting in holes or sockets formed in the shuttle walls and constituting r011 snumrnns 1930. Serial No. 452,762.

pivots about which the clip may be swung into and out of operativeposition.

Adjacent the clip, the inner walls of the bobbin chamber are preferably provided with opposed grooves 7, and the end portions of the thread guide 5 are looped around the arms of the clip and are frictionally gripped between said arms and the bottoms of said grooves. In other words, it will be understood that the spring clip is confined betweenthe walls of the shuttle and tends to expand or move outwardly, and that the resilience' of the clip causes it to firmly hold the thread guide 5 between itself and the grooves;

For removing and inserting the thread guide the clip may be swung about the pivots 8 hen thus swung upwardly a strip constituting the thread guide may be folded around-the clip and then the clip swung downwardly and snapped into position between thewalls, thus frictionally gripping the end portions of the strip and resiliently holding it stretched across the bobbin chamber, as shown. Thus the thread guide is not positively or permanently attached to the shuttle butis detachably held therein by friction only, and therefore may be readily removed and replaced.

For the sake of elearness the bobbin itself has been omitted from the drawing, but a fragment of thread as it would appear when coming from the bobbin is illustrated and is designated as. This thread passes between the upper and lower portions of the thread guiding strip 5, as shown, and is thus efi'ectively held out of contact with the side walls of the shuttle.

lVhat I claim is:

l. A shuttle having a bobbin chamber, a thread guide of flexible material extending transversely across said chamber, and a spring clip for resiliently gripping portions of said thread guide between itself and the side walls of the shuttle.

2. A shuttle having a bobbin chamber, a thread guide of flexible material extending transversely across said chamber, and :1 lat erally eXpansible spring clip adapted to be confined between the side walls of said cham- 2 meaeoe her and serving to resiliently hold said thread guide in position. 7 r

3. A shuttle having a bobbin chamber,the walls of said chamber at one end being provided with opposed grooves, a laterally resilient spring clip fitting within said grooves, and athread guide of flexible material having poi-ti -ns frictionally gripped between the bottoms oi? the sides of said grooves and said 10 spring clip and thus held in position. 77

a l. A shuttle having a bobbin chamber, the walls of said chamber at one end being provided with opposed grooves, a substantially U-shaped spring clip having laterally resilieut arms confined between said walls and received in said grooves, and a thread guide of flexible material having portions frictionall gripped between the bottoms of said grooves and the arms of said clip and thus held in e position. 7

5. A shuttle having a bobbin chamber the walls of which HB PIOVlClQ/Cl near one end with a pair of opposed sockets, a substantially U-shaped spring clip confined between said walls and having out turned ends fitting in said sockets, said ends constituting pivots about which said clip can be swung, and a thread guide of flexible material having portions gripped between said clip and said walls, s whereby said thread guide is held in position.

6. A shuttle having spaced side walls forming a bobbin chamber, thread guide comprising a strip of flexible material doubled upon itself to proyide two portions between which the thread passes and stretched between said side walls, and means engaging the ends of said strip portions for detachably holding them in position, the middle of said 40 strip portions being unsupported.

In testimony whereof I ailix my signature.

'WILLEAM PINCKNEY CRAIG. 

